Swedish folk musician, whose main instrument is viola and composer, born December 29, 1977 in Gothenburg's Johanneberg, Gothenburg. He is now living in Östra Ämtervik, Värmland.

In 1996, Stinnerbom formed the group Harv (with Daniel Sanden-Warg) and used to play with Hedningarna. He has also toured with the Finnish singer Sanna Kurki-Suonio. Stinnerbom has also worked full-time as a musician, composer and arranger. He is music director and composer at Västanå theater in Värmland.

He participates, among other things, in the groups Ale Möller Band. Magnus has been touring since 2008 with Anders Wendin, also known as Moneybrother.

He is the son of Leif Stinnerbom and Inger Stinnerbom and married to Sophia Stinnerbom.